Electrically-heated stenciling-machine.



E. N. CHANDLER.

ELECTRICAL HEATED STENGILING MACHINE. Anucmon FILED m. :9. 1913.

I 1,144,809., Patented June 29, 1915.

"CI NOIIII PITIII m. PNOID'LITHQ. WAIHINGNN. D. f.

CHANDLER, OF BRAINTBEE, MASSACHUSETTS.

- ELECTBIGALLY-HEATED STENCILING-MACHINE.

Specification of Letters Patent.

Patented June 29, 1915.

Application filed Earth 19, 1918, Serial No. 755,819.

This invention relates to stencilin ma- H chine and more particularly to an e ectrically eated stenciling machine; the object of the invention being to improve and perfect machines of this ty e, and to provide a construction whichwi be simple in operation and economical to manufacture.

My improved stenciling machine includes a carrier, having a plurality of characters, such as initials, thereon. each character being arranged for operative position with a work table by a rotative movement of the carrier. Preferably the carrier is so an ranged that the stenciling members held thereby may be readily detached and attached, as well as means to secure such members in an adjusted position radially with the carrier. 7

Also it is an important .feature of my present apparatus to so arrange the electrical heater and the carrier holding the stenciling members, to, insure a continual application of a uniform degree-of-heat to such stenciling members. even while such carrier is being moved and maintained into operative engagement with the work, or while the carrier is out of engagement with. the work.

My invention also comprises means whereby the work to be operated-u on may be quickly and readily clamped the work support or table in proper positionto be acted upon by any one of the stencils supported by the carrier, at the will of .the .operator. Furthermore, I referably arrange the table so that the wor may be adjusted while still held in its original clamped position, to any predetermined distance desired for a second or additional,stencilingoperation by the same or adifi'erent stencil. This predetermined spacing of successive'operations ontheworkis preferably determined by means of a gage or scale,

The provision of an. electrically heated stcnciling device is, so far. as I am aware, a distinct novelty in this artand my inveation comprises an electrical heating means normally out of contact with the stenciling members, but held in the carrier and adjacent to said members so that the desired degree of heat may be imparted thereto at all times.

Heretofore it has been attempted to heat stenciling devices by gas or steam, but such an arrangement is very unsatisfactory, necessitating a. cumbersome and expensive arrangement where a steam shaft or the like was employed; and the use of a gas flame is highly objectionable, because of the character of the work, often highly inflammable. and the danger of blackening the dies or stencils, and thereby marring the work.

By means of my invention I am enabled to obviate the 0b1ections above noted, and to provide a uniform heat at all times to the stencil members and prevent any discoloring or marring dueto such application of heat. Preferably I arrange the carrier having the stencil members or dies therein to be actuated by a foot treadle and maintain the same normally out of contact with the work, by means of .a suitable spring.

Other featuresof the invention, novel combinations of parts and details of construction, will be hereinafter more distinctly pointed out and claimed. Referring to the drawings, Figure 1 is a front view of a stenciling apparatus, cmbodying my invention in a preferred form;

lg. 2 is a Side view; Fig. 3 is a cross section, enlarged, on theline 3-3 of Fig. 1-, Fig. 4 being an enlarged view on the line 4-4 of Fig. 2. p

The apparatus is intended to be supported on the edge portion of a bench or table 1, and its frame carried by a base 2, with a forward bracket member 3, and secured to the base 2 is an upstanding arm 4, slightly overhanging the bracket 3, as indicated at 5. The head 5 carries a'rertical groove in which. a slide 6 is mounted, said slide having its upper portion forked, as indicated at 7, to receive the end of a lever 8, being pivotally connected thereto by a bolt 9, This lever has its other end carried loosely on a pin 10, supported through the upper forked arms of a bracket member 11, secured to tlu rear of the ortion 4, as shown in Fig. 2 The lever 8 is pivotally connected at 12 tr the head 18 of a rod 14 connected to a fool treadle (not shown) having a coiled spring 15 encircling the upper end of the rod 14 and bearing upwardly against the l3 and between a socket 1 6, formed no. regeTifie v this spring in the top (if the arm 4. spring 15 lwl'nmlly nieie esinet elqvstfi and slide 6 in uppermost position, as shown, and. the q e. c weeds-w u t b e e treadle, so that the lever Ina be depressed against the tension of the spring 1%) to moie' the slide 6 downwardly. Secured to the li e? by s b e 'qi ri t nd sf r culpr plate 19, "preferi1blyl fouined, wit a. re- 6958' n. he e heme? l ie F g 3 whieh recess rs fitted on eleetric nl, heatin coil 20. This plate' 19' also hiis a'centrnl h 1 ll and u bpss 2 2 on one side. Thehuh 21 is fprnied to project slightlj 'to tlie'left, view- F g. eybml e 'n s'ul e s' h i n t C we}: qet ier 23 ormed with n, centrnl' s perture to fit ov r the hnh i sl e d me im tie li ma freely notnte on said rub, by it, washer 24 "elfbe de bol i ith t 'h el P s ing thrpu h the huh 21, aind ha ving inner end threw ed into n eorres' ondip ly tapped Socket 2? in the carrier sli e I e boss'22 formedon'the'pl'te 19. isbored to recelye a plun er 28 passing therethi'ongh end pro? i l d w h a ollar. 19 2 it en n n a a dle 0- 1 t out r, d. a d 2 8 2 2 being counter-here from, its i nne end to newbie In s ranei lq spri g 3l, yfi qm ee f between the soel et formed X said, counterbse f g ce l 29 inhis 952 nd.- ing to 'force t e rod 28 normnllv toward, the left, viewing Figs. 2 and 4 'llhe cztr riqrflil provided, with, a plurality of nrqimd its ei-iphejr y, ivhiph me in. lipe'to register witii the rod 2 Sgthgt il s theqz rrjqr, 23 is given it rotntiye rppwie n ent, the rod 28 will spring into an a jncent reeess 32 and holdthe carrier relatively with the pint Q19. The operator, upon moring the hiindleBO to withdraw the rod .28 from engugen ient with an of saidsoc lgets 32, ennthenei sily'rotete the enrrier 238 to a'. ne1w 120316 113, it en s flild carierlng y n i go 9 a gre. e e i 31i: ds rii igdi i 9145 5 lfi l l y 0i dies 33 around per phery, a d for this Hmmermw a en 3. hexm'Qn time: -.Yl Se ur d. 9 ,9 Qt' ri x': 2ifbx a rhyt m qf sc e s, 3. atermane RBUDl Q L At ui ab e Pf i 111 1; t wer a t -i est I' ."w ifbw sheet 3 sh nk f he nette-ew r P $J nd e 1 1 9. 1, he re 35 (se Eur-B)- B gmbx the diee lge we metpe sl: hevtthe-mr eherx qf. e tame m. e t qefie he eeme eee 2, as); hat 1 t iil Mt i Qd egee he m er e 9 Me t h 3t1qi9 theftstipno the, rodflfieoopera ting it erecess 20. ne web. levee, efits) pr i'is ss ier. tqh l2 mime of positioning the machine on the support, and also for the purpose of currying a n o raple,monk-s ugger} or slide, being for this purpose pro'rl ed with dovetailed %r Wei i921, llg treps gerse slide which side also carries a second slide 39 having a rib gfit t ing in a groove in the top of the slide 38, and at right angles to the guidewiz'y provided in the bracket 3. This urrnngement provides a convenient work support, and is in properposition underneath anloitrgripr t-ln t the plork to' e o erg; e "n on n zt'y e positi'one on tlie top hf't hel slide 39, aind i'eeeive the ini- 'i'ntf i" ,57 f' li e h 4 is 1 pi essed and" the carrier 6 descends, the s'pri 15 mitoinatically returning the slide 63 n reisiii 1 the? dies froin the work. To facilitate mtg ip'uhttion of theslidesBS and 3 9, I attnoh to 'sxiid sliide 38 n pivoted arm 4- 1, hq\"'ing' '5 series of notches l'il'ot' n predetermined. distance npart, which note-hes fit oi'epit lug 43 nio'unted at one side, on the b a se spring tendsto hold the arm 41 within q notch lgin engageinentwith the stud 43', b t permits said arm to be raised and thesli ekm'o vegdto a second position. i 8159 pi' m'illtle aspr ing catch 45 on thetop oi the w'q'rk support 39",havingh handle 46 h faoi the some and positioning the Wbrl 'op'eruted upon underneath the betel 1'45, 'w eieit is, 1161a (nu-m tin further operations ,ofthe stenciling apparatus. A sore "fijarranged its shown i1 F1" rand 'p aissm through an elongn tei slp jinltii'e srifig'45' permits tlio lateral :ul justmen 'of' his'spring, rind secures" the szunl to th e Worlg tithl I also provide suitz bh electrioal eonnec'ingfdevice 48, so that th wellfkndwn iiiid s tiilidard type of connecto Il l ity b afiiiie'd'to the npparntus and Suppl; current tii'the'electiial heater 20 which wil mini-em the 'dies in 'n sntisfnctory de gree' of heliitlj ln stenoilipgon leather or th lilgeheet ispfpartie'ulur iinportance in rer d11'l%.i3l'lq iniprint of the die more permr nent 9 well aafi'ordin'g an ornamented o ernbossin efij'ect.

An if i cl e' operated; upon is firs plosit onedbv t e ettendnnt under the sprin cgp 45 on the work table The carrie 2 I is then rotated t?! bring the desired di into lo er o'st d I ti'ilhold'the earrigii r in 1th pos LQIt riii e 0"eriitiqn." he 0( tlfeladl' a'pliirat g. the 210d 1,4," is then d end'the" slide 6 reeiprocated'carr e la F-tedt e p theg'efixn qovgii wardiy, until the 1 wermo oneeon t tetswith tefwo'rk when t e oper: tor, releases the t'r'egdl. The work in: then be 'iiioved whilels'till cliim'ped, by me in the e 'de.3 lptera'lly to'enguge nnoth; no in e 'ljw ith the stitch 13, and. seqond die ey'h e'brought into position I rotation of lie caii'ier 23fand the operati repeated. In stenciling initials or the like,

it is, of course, desirable to maintain a umform distance between-the impressions, and therefore the notches 4.2 are made uniform so that the slide 38 may be instantly and easily positioned a uniform distance for each successive stenciling operation. It is, of course, feasible, however, to move the slide 38 any desired distance as well as to actuate the slide 39 to and fro in stenciling two or more rows of characters, letters or the like. It will be readily appreciated that I have provided a stencihn apparatus which maintains the dies or c aracters in any desired degree of heat to facilitate the stenciling operation, and that the entire a paratus is economical to construct, simp e to operate, adjustable in all respects, carrying a large range of dies or characters, and is eliicient in operation, an reasonable degree of force being afi'orde by the levera e of a foot treadle on the actuating rod. 11 order to facilitate the locking of the carrier 23, I may provide the ring 34 with printed characters corresponding in number and of similar significance wit those on the dies 33, which characters on the face of the ring 34 will be opposite the locking rod 28 when the die carrying the corresponding character will be in the lowermost position, as shown at 49. Thus, for exam 10, if the die 49 has on its operative face t e letter A, then the letter A will appear on the ring 34 in proper position opposite the locking rod 28, so that when the carrier 23 is positioned with the die 49 in lowermost position, the carrier may be locked and operated. This arran ement affords a convenient means of ena ling the operator to determine just what die is in position for use, and facilitates the easy, quick, and ready operation of the apparatus.

Having described my invention, what .5. claim as new and desire to secure by Letters Patent is:

LA device of the kind described, comprising a slidable carrier, a hub rigidly secured to said carrier and supporting a plate having a recess in one face, an electrical heater carried in said recess, a die carrying plate rotatably supported by said hub and in contact with the heater containing plate throughout substantially its entire extent, a plurality of stenciling dies removably secured to said plate and all in substantially equal heat receiving position, in combination with means carried by said heater containing plate to lock the die carrying plate in rotative position to hold a selective die in work engaging position.

2. An electrically heated stenciling apparatus, comprising a rotatable carrier, a vertically rec1 rocating carrier having thereon electrical eating means, a rotatable die carrying plate with its dies removably secured to its periphery, a locking member on the side of said rotatable die carrying plate to hold said plate with a selective die in lowermost position to engage the work, and an indicator on the late for each die in position adjacent sai lock to indicate Whlch die is in work engaging position on the lowermost portion of said plate.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribin witnesses.

iIDWIN N. CHANDLER.

Witnesses:

James R. Honnnn, R. G. Hnnsnr.

Ccpiea of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents.

Washington, D. 0. 

